Azurite – Morocco
Azurite: a soft, deep blue copper carbonate mineral formed from the weathering of copper ore. The azurite crystals on matrix are from Morocco.
Azurite is a vibrant, deep blue, hydrated copper carbonate (Cu3(CO3)2(OH)2) formed as a result of the near surface weathering of copper ores. It is fairly soft , 3.5 - 4 on the Moh's scale. It is unstable in the open air & in situ it is often replaced by the other copper carbonate, Malachite. Azurite has been prized since antiquity as a pigment in paint. It's use as a decorative stone in jewellery is limited due to it's fragility. It is easily destroyed by heat. Although Azurite is not commercially extracted for copper it's surface presence is a good indicator of the occurrence of weathered copper sulphide ores. The intense colour of Azurite has made it popular with mineral collectors. However, that colour will fade with prolonged exposure to daylight. So store in a cool,dry place.
These examples are from Morocco. Each specimen is supplied in a labelled card tray.